| Primary satellite | Secondary satellite |
| Name | Meteor 2-6 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 11963 | 34482 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 14 08:50 | 2021 Apr 14 13:49 |
| Time of closest approach (UTC) | 2021 Mar 04 12:32:37.756 |
| Minimum distance | 44.652 km |
| Height difference | 4.012 km |
| Relative speed | 0.941 km/s |
| Angle between velocity vectors | 7° |
| Geographic position | 2.7°S, 79.4°E |
| Height | 811 km |
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